Demountable rim.



E.A'.LYMANQ DEMOUNTABLE RIM. APPLICATION man sum: a. 191z Patented Apr." 30,1918,

l/V l/EN TOR being manipulated for rapid zissembling,

it FFT U l flll EUGENE A. LYIVIAN, or MOUNT VERNON, NEW YORK.

nEMoUNrABLE RIM.

Specification of Letters Patent.

Patented itpr. 31), This.

Application filed .Tune 8, 1917. Serial No. 173,437.

acter which are made in sections to facilitate the assembling of the rim and tire. v

The objects of the invention are to provide a rim of this character which is of a simple construction, is constructed from a lninlmummumber of sections, is capable of and when assembled has its sections rigidly locked together to hold the shoe in position. Other objects of 'the invention will be clear from the detailed description hereinafter to follow, taken in'connection with the accompanying drawings and will be particle larly pointed outin the appended claim.

In the drawings: Figure 1 shows in elevation a rim constructed in accordance with the principles of the invention;

Fig. 2 is an .elevation of the rim shown in section in partially assembled position; Figs. 3 and 4 are details of the locking plate and stud utilized at one-end of the short section; and v Figs. 5 and 6 are details of the locking stud at the other end of the short section. The demountable. rim, which.is adapted to be placed over the felly of the wheel of the "ehicle after the shoe has been placed in position thereon; is of the usual type of demountable rim, in which the straight side flanges are integral with the body of the rim, but instead of being split at one point, as is the usual construction of these rims, it is made in two sections 1 and 2, of unequal lengths, the section 2 being the short section, which is assembled after the long section 1 has been placed within the shoe.

The sections 1 and 2 are rigidly locked together when in assembled position by locking plates and studs, which are constructed to permit the rapid assemblage of the rim and shoe and also the removal of the rim form the shoe when necessary. The locking plates are secured to the short section-2,

and are designated 3 and 4. These plates consist of short rectangular strips of sheet steel which are riveted as at 5 to the inner face of the short section 2 at the ends thereof, so that they project beyond the ends of ta the short section to overlap the ends of the long section 1 when the section 2 is' in position. One corner of the plate 3 may be cut away as at 5. Secured to one end of the inner face of the long section 1 is a studtt '6 which is adapted to pass through a hole or opening 7 in the projecting end of-the plate This stud is of greater length than the thickness of the plate 3 so that it projects beyond this plate, as shown in Fig.3, m

the end of the stud being preferably pointed,

as shown, to aid in the assembly of the sec tions, as will be later referred to. i

-The locking plate 4 at'the other end of the section 2 also cooperates with a locking Wt stud which is designated 8,. which stud passes through a hole or-opening 9 in a projecting end of the plate. The outer wall of the opening 9 and the engaging face of the stud are undercut at 10 to prevent the to plate from slipping off the stud when the rim is mounted upon the wheel fellyand an outward pressure is placed upon the rim by the usual wedges which are utilized to maintain the rim in place on the wheel.

In order to make the sections rigid when locked, it is desirable to make the short section as nearly the same Size as the long section', and yet permit the sections to be assembled with ease and facility Without re- W quiring the short section to be. sprung into place, and in the method of assembling described the short section is so proportioned. To insert the shoe upon the rim, the section 1 is first positioned within the shoe, which we may be readily accomplished by placing one end of the section within the shoe and then bending the section slightly until the other end is depressed sufficiently to permit it to be freely inserted into the shoe. tion 2 is then placed in position by placing the hole? in the plate 3 over the stud 6, i

which can be readily accomplished, sincethis stud has a pointed end. The section 2- is then swung upon the stud 6, as a pivot, to 11% bring it into alinement with the section l, but. which necessitates tilting it upon the plate 3 to bring the edge of the flanges of the short section beneath the body of the section 1. as shown in Fig. 2. It is for this no purpose that the corner of the plate 3 is cut away, as at 5, since the plate will. then rest The sec- WW 7 upon this cut-away portion while he 1g tilted. The sections are then in the position shown in Fig. 2, the section 2 is then pulled outwardly until it is in engagement with theshoe, which will also cause the stud 8 to pass into the. hole9 to lock the two sections together. The demountablerim is ready to be placed uponthe felly of the wheel, where it"is secured .inlplace in theusual manner, bywedges fitting between the telly of the v wheel and the demountable rim. Any outward pressure which is placed upon the section2, which pressure might cause the stud 8.toslip out of the hole 9, is prevented by dercutting the stud 8 and wall of the hole,

as described." l 'Toiremove the rim from the shoe, the

short section is pressed inwardly until the plate d is free from 'the locking stud 8', after which th'efshort section may be removed by swinging'itthe re'yerse of the assembhng 'op-' cr ation. The lon section can then; be remaven without d cul'ty.

' It is "to be understood that a valve hole 11' is provided in the section 11 through which the tire valve is inserted when initiall-' asscribed.

' will therefore be seen that the rim may be assembled and removed from a shoe without requiring any tools, such as tire irons, and either operation can be performed in an entirely simple and rapid manner.

sembling the tire upon the section 1, as de-.

fljhe assembled tire and rim are then positioned upon and'locked to the wheel of the ,vehicle in the usual manner, the long stud 6 fitting in a suitable recess in the fclly of the wheel, which will prevent the rim from slipping around the wheel. The wedges which are-interposed between the telly of the wheel and the rim will cause a slight extending of the sections, bringing the undercut stud 8 ,ifitolocking engagement with the wall of the hole; This slight expanding of the rim forces it into firm engagement with the shoe which will prevent any slippage of the tire upon the rim. i I claim:'

' A demountable rim comprising a long and a short section, fixed locking plates projecting from 'the'en'ds of said short section having holes therein; locking studs carried by the long section adapted to fit into said holes to lock the said sect-ions together, and one of said studs and the walls of the hole in engagement therewith being undercut and an- 

